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Start your free trialSarker Jawad Islam
3,587 PointsCannot use operand "+=" for the frog code challenge for some reason
FrogStats.cs(11,17): error CS0019: Operator +=' cannot be applied to operands of type
double' and `Treehouse.CodeChallenges.Frog'
That is the error I am getting.
I tried using + just to test and it seems like any operand I use causes an error.
Not sure what I am doing wrong
namespace Treehouse.CodeChallenges
{
class FrogStats
{
public static double GetAverageTongueLength(Frog[] frogs)
{ double result;
int num = frogs.Length;
for(int i=0; i< frogs.Length; i++)
{
result += frogs[i];
}
result /= num;
return result;
}
}
}
namespace Treehouse.CodeChallenges
{
public class Frog
{
public int TongueLength { get; }
public Frog(int tongueLength)
{
TongueLength = tongueLength;
}
}
}
1 Answer
Steven Parker
231,269 PointsThe "preview" button error message is telling you that you're trying to add the frog itself, so instead use just the TongueLength:
result += frogs[i].TongueLength;
The other issue is that you cannot use the '+=' operator on variables that haven't been initialized (only declared), so give "result" an initial value:
double result = 0;
Sarker Jawad Islam
3,587 PointsSarker Jawad Islam
3,587 PointsThank you very much that solved it!.